CN209916068U

CN209916068U - Biopsy sample transfer device

Info

Publication number: CN209916068U
Application number: CN201920546251.8U
Authority: CN
Inventors: 贾娟
Original assignee: Third Medical Center of PLA General Hospital
Current assignee: Third Medical Center of PLA General Hospital
Priority date: 2019-04-22
Filing date: 2019-04-22
Publication date: 2020-01-10
Anticipated expiration: 2029-04-22

Abstract

A biopsy sample transfer device, comprising: a tube body, a needle assembly; the upper end of the pipe body is closed, the lower end of the pipe body is provided with an opening, and the side surface of the pipe body is provided with a long cutting seam; the upper end of the tube body is provided with a first magnet, and the lower end of the tube body is provided with a second magnet; a through hole is formed in the middle of the second magnet; the needle head assembly comprises a needle head and a needle bolt; at least a portion of the pintle is received within the barrel; the upper end of the pintle is provided with a piston head which is accommodated in the cylinder body; an iron block is formed on the piston head, a handle is formed on the peripheral surface of the piston head, and the handle extends from the cutting seam to the outside of the cylinder body; the needle head is inserted into the needle hole at the lower end of the pintle; when the piston head approaches the first magnet, the iron block is attracted by the first magnet and clings to the first magnet, so that the needle head is retracted in the barrel; when the piston head is close to the second magnet, the iron block is attracted by the second magnet to be closely attached to the second magnet, and the lower end of the pintle passes through the through hole and the opening and then extends to the lower part of the barrel.

Description

Biopsy sample transfer device

Technical Field

The utility model relates to a medical instrument especially relates to a biopsy sample transfer device.

Background

In endoscopy, it is often necessary to take a sample of a biopsy specimen. The sampling forceps (biopsy forceps) are inserted into a lumen of an endoscope, a sample at a part to be detected is clamped down, after the sampling forceps are drawn out, a sample on the sampling forceps needs to be transferred onto a sample bottle or a glass slide, and then the sample is sent to a laboratory for testing. Currently there is no tool specifically designed to remove or strip a sample from a bioptome and then load it onto a sample vial or slide. Typically using a syringe needle. The sharp tip of the needle is always exposed and in its ready-to-use condition (multiple biopsy samples may be involved during the endoscopic procedure, with an indeterminate time interval between each), the sharp needle is prone to inadvertently stick to the operator. In addition, some biopsy samples are soft and even sparse, and the straight needle of the syringe needle is not easy to remove.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present application aims to provide a biopsy sample transfer device, which facilitates retraction of a needle, and avoids accidental injury to medical staff during standby; on the other hand, it can replace the needle as required.

A biopsy sample transfer device, comprising: a tube body, a needle assembly;

the upper end of the pipe body is closed, the lower end of the pipe body is provided with an opening, and the side surface of the pipe body is provided with a long cutting seam; the upper end of the tube body is provided with a first magnet, and the lower end of the tube body is provided with a second magnet; a through hole is formed in the middle of the second magnet;

the needle head assembly comprises a needle head and a needle bolt; at least a portion of the pintle is received within the barrel; the upper end of the pintle is provided with a piston head which is accommodated in the cylinder body; an iron block is formed on the piston head, a handle is formed on the peripheral surface of the piston head, and the handle extends from the cutting seam to the outside of the cylinder body; the needle head is inserted into the needle hole at the lower end of the pintle and is combined with the inner circumferential surface of the needle hole by the friction force of the outer circumferential surface at the upper end of the needle head;

when the piston head approaches the first magnet, the iron block is attracted by the first magnet and clings to the first magnet, so that the needle head is retracted in the barrel;

when the piston head is close to the second magnet, the iron block is attracted by the second magnet to be closely attached to the second magnet, and the lower end of the pintle passes through the through hole and the opening and then extends to the lower part of the barrel.

Preferably, the first magnet and the second magnet are respectively positioned in the cylinder; the iron block is encased within the piston head.

Preferably, the needle is replaceable.

Preferably, the tip of the needle is formed straight or curved.

Through the biopsy sample transfer device, the needle can be retracted into the barrel body in a standby state, so that an operator is prevented from being accidentally injured; the needle head can be replaced by a needle head with a bent tip according to the requirement so as to conveniently pick out sparse or loose samples.

Drawings

FIG. 1 is a schematic cross-sectional view of a biopsy sample transfer device according to the present application;

FIG. 2 is a front view schematic of a biopsy sample transfer device of the present application;

FIG. 3 is a side view schematic of a biopsy sample transfer device of the present application;

FIG. 4 is a schematic view of the biopsy sample transfer device of FIG. 1 with the needle retracted;

FIG. 5 is a schematic view of the biopsy sample transfer device of FIG. 3 with the needle retracted;

fig. 6 is a schematic view of another form of needle.

Detailed Description

The biopsy sample transfer device according to the present application will be described in detail below with reference to the drawings.

A biopsy sample transfer device, comprising: body 10, needle subassembly.

The upper end of the tube body 10 is closed, the lower end is provided with an opening 14, and the side surface is provided with a long cutting seam 15; the upper end of the tube body 10 is provided with a first magnet 11, and the lower end of the tube body 10 is provided with a second magnet 12; a through hole 13 is formed in the middle of the second magnet 12.

The needle assembly comprises a needle 25 and a pintle 23; at least a portion of the pintle 23 is contained within the barrel 10; the upper end of the pintle 23 is formed with a piston head 20, and the piston head 20 is accommodated in the cylinder 10; an iron block 21 is formed on the piston head 20, a handle 22 is formed on the peripheral surface of the piston head 20, and the handle 22 extends from the slit 15 to the outside of the cylinder 10 so as to facilitate the user to operate the piston head 20 to slide up and down in the cylinder; the needle 25 is inserted into the needle hole 24 formed at the lower end of the pintle 23 and is coupled to the inner circumferential surface of the needle hole 24 by the frictional force of the outer circumferential surface of the upper end of the pintle 23. When a pulling force greater than this frictional force is externally applied, the needle 25 can be withdrawn, thereby replacing the needle.

When the piston head 20 approaches the first magnet 11, the iron block 21 is attracted by the first magnet 11 and the piston head abuts against the first magnet, whereby the needle 25 is retracted within the barrel, as shown in figures 4-5.

When the piston head 20 approaches the second magnet 12, the iron block 21 is attracted by the second magnet 12, the piston head is tightly attached to the second magnet 12, and the lower end of the pintle 23 passes through the through hole 13 and the opening 14 and then extends to the lower part of the cylinder 10.

The first magnet 11 and the second magnet 12 are respectively positioned in the cylinder 10; the iron block 21 is encased within the piston head 20. The needle 25 is replaceable. The tip of the needle is formed straight or curved and the needle 25 is withdrawn overcoming the friction between the needle hole and the upper end of the needle and a new needle or a different shape of needle has been replaced, for example a needle with a curved tip as described in fig. 6.

When in standby, the needle head and the pintle are contracted in the barrel body by operating the handle; when in use, the pintle and the needle head extend out from the lower end of the barrel body, the sample on the biopsy forceps is removed by the needle head, and the sample is transferred to a sample bottle or a glass slide.

Claims

1. A biopsy sample transfer device characterized by comprising: a tube body, a needle assembly;

2. The biopsy sample transfer device of claim 1, wherein:

the first magnet and the second magnet are respectively positioned in the cylinder body; the iron block is encased within the piston head.

3. The biopsy sample transfer device of claim 1, wherein:

the needle is replaceable.

4. The biopsy sample transfer device of claim 1, wherein:

the tip of the needle is formed straight or curved.